Fixing device for a magnetic ring on a gear in particular in...

H - Electricity – 02 – K

Patent

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Details

H02K 29/08 (2006.01)

Patent

CA 2533507

The invention relates to a fixing device (1), for a multipolar magnetic ring (10) on a gear (20), driven in axial rotation by an electric motor and, in particular, on a motor reducing gear. The invention is characterised in that the fixing device (1) comprises at least one stop element (22a, 22b), fixed to the gear (20), which can engage with an anchor projection (12a, 12b) on the magnetic ring (20), with a coupling direction essentially parallel to the plane of the gear (20), with at least one retaining clip (23) on the gear (20), which engages with a retaining projection (13) on the magnetic ring (20), after elastic deformation, with a coupling direction essentially perpendicular to the plane of the gear (20).

La présente invention concerne un dispositif de fixation (1) d'un anneau magnétique multipolaire (10) sur une roue (20) destinée à être entraînée en rotation axiale par un moteur électrique, et notamment une roue de moto- réducteur. L'invention est remarquable en ce que le dispositif de fixation (1) comporte au moins un élément de butée (22a, 22b) solidaire de la roue (20), qui est apte à s'emboîter avec une saillie d'ancrage (12a, 12b) solidaire de l'anneau magnétique (20), suivant une direction de couplage sensiblement parallèle au plan de la roue (20), ainsi qu'au moins un clip de blocage (23) solidaire de la roue (20), qui est apte à s'emboîter après déformation élastique avec une saillie de blocage (13) solidaire de l'anneau magnétique (20), suivant une direction de couplage sensiblement perpendiculaire au plan de la roue (20).

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